Question

我有一个像这样的数组

Array
(
    [0] => Array
        (
            [vendor_id] => 2
            [vendor_total_order] => 80
        )

    [1] => Array
        (
            [vendor_id] => 2
            [vendor_total_order] => 100
        )

    [2] => Array
        (
            [vendor_id] => 1
            [vendor_total_order] => 150
        )
    [3] => Array
        (
            [vendor_id] => 3
            [vendor_total_order] => 80
        )

    [4] => Array
        (
            [vendor_id] => 5
            [vendor_total_order] => 150
        )

    [5] => Array
        (
            [vendor_id] => 1
            [vendor_total_order] => 110
        )

)

我想以这样一种方式简化这个数组，如果＆＃39; vendor_id＆＃39;两个值相同，那里累积/总和值应分配给'vendor_total_order＆＃39;到那个＆＃39; vendor_id＆＃39;（基本上我们正在删除具有相同vendor_id的值与重复项的总值）。

因此，当我提供上述数组作为输入时，输出应如下所示

Array
(
    [0] => Array
        (
            [vendor_id] => 2
            [vendor_total_order] => 180
        )

    [1] => Array
        (
            [vendor_id] => 1
            [vendor_total_order] => 260
        )
    [2] => Array
        (
            [vendor_id] => 3
            [vendor_total_order] => 80
        )

    [3] => Array
        (
            [vendor_id] => 5
            [vendor_total_order] => 150
        )

)

我该怎么做？

Answer 1

您只需要使用foreach对它们进行分组。例如：

$total = array();
foreach ($array as $key => $value) {
    if(!isset($total[$value['vendor_id']])) {
        $total[$value['vendor_id']] = array('vendor_id' => $value['vendor_id'], 'vendor_total_order' => 0);
    }
    $total[$value['vendor_id']]['vendor_total_order'] += $value['vendor_total_order'];
}

$total = array_values($total); // simple reindex
echo '<pre>';
print_r($total);

Sample Output

Answer 2

最好的办法是编写一个执行以下操作的自定义脚本：

创建一个空的新“结果”数组
迭代当前数组和每个项目：
如果结果中不存在该项，请插入该项，否则将total_value值更新为其当前值与新项的总和。
保存结果数组

通过删除相同的键值来简化数组

2 个答案: